A Robust Display Delay Compensation Technique Considering User’s Head Motion Direction for Cloud XR

Conventionally, it has been difficult to realize both photorealistic and geometrically consistent 3DCG rendering on head mounted displays (HMDs), due to the trade-off between rendering quality and low motion-to-photon latency (M2PL). In order to solve this problem, we propose a novel rendering framework, where the server renders RGB-D images of a 3D model with the optimally arranged rendering viewpoints, and the client HMD realizes geometric compensation of M2PL by employing depth image based rendering (DIBR). Experiments with real smart glasses show that the proposed method can display binocular images closer to the ground truth than the conventional approaches.